<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container {
            height: 400px;
           width: 400px;
            background-color: green;
          
          float: right;

        }

        .box {
            height: 200px;
            width: 200px;
            background-color: red;
        
       
        }
        ul li{
            float: left;
            margin:0 10px;
            
            
        }
        a{
            text-decoration: none;
        }

    </style>
</head>

<body>
 
    <div class="box"></div>
    <div class="container"></div>
    <ul type="none" >
        <li> <a href="#" type="none">导航1</a> </li>
        <li> <a href="#">导航2</a> </li>
        <li> <a href="#">导航3</a> </li>
    </ul>
</body>

</html>